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LibWeb: Add support for "place-items" CSS property

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Adds support for place-items property which allows to specify both
align-items and justify-items in a single declaration.
This commit is contained in:
Aliaksandr Kalenik 2023-07-17 16:34:12 +02:00 • committed by Andreas Kling
parent a74c56bc1b
commit a8587fe54e
Notes: sideshowbarker 2024-07-17 11:30:05 +09:00
12 changed files with 135 additions and 0 deletions
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8
Tests/LibWeb/Layout/expected/grid/place-items-center.txt Normal file
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@ -0,0 +1,8 @@
Viewport <#document> at (0,0) content-size 800x600 children: not-inline
BlockContainer <html> at (1,1) content-size 798x37.46875 [BFC] children: not-inline
Box <body> at (10,10) content-size 780x19.46875 [GFC] children: not-inline
BlockContainer <div> at (362.9375,11) content-size 74.125x17.46875 [BFC] children: inline
line 0 width: 74.125, height: 17.46875, bottom: 17.46875, baseline: 13.53125
frag 0 from TextNode start: 0, length: 8, rect: [362.9375,11 74.125x17.46875]
"Download"
TextNode <#text>

9
Tests/LibWeb/Layout/input/grid/place-items-center.html Normal file
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@ -0,0 +1,9 @@
<!DOCTYPE html><style>
* {
border: 1px solid black;
}
body {
display: grid;
place-items: center;
}
</style><body><div>Download

1
Userland/Libraries/LibWeb/CMakeLists.txt
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@ -110,6 +110,7 @@ set(SOURCES
CSS/StyleValues/NumberStyleValue.cpp
CSS/StyleValues/OverflowStyleValue.cpp
CSS/StyleValues/PlaceContentStyleValue.cpp
CSS/StyleValues/PlaceItemsStyleValue.cpp
CSS/StyleValues/PositionStyleValue.cpp
CSS/StyleValues/RadialGradientStyleValue.cpp
CSS/StyleValues/RectStyleValue.cpp

24
Userland/Libraries/LibWeb/CSS/Parser/Parser.cpp
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@ -70,6 +70,7 @@
#include <LibWeb/CSS/StyleValues/OverflowStyleValue.h>
#include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
#include <LibWeb/CSS/StyleValues/PlaceContentStyleValue.h>
#include <LibWeb/CSS/StyleValues/PlaceItemsStyleValue.h>
#include <LibWeb/CSS/StyleValues/PositionStyleValue.h>
#include <LibWeb/CSS/StyleValues/RadialGradientStyleValue.h>
#include <LibWeb/CSS/StyleValues/RatioStyleValue.h>
@ -6222,6 +6223,25 @@ ErrorOr<RefPtr<StyleValue>> Parser::parse_place_content_value(Vector<ComponentVa
return PlaceContentStyleValue::create(maybe_align_content_value.release_nonnull(), maybe_justify_content_value.release_nonnull());
}
ErrorOr<RefPtr<StyleValue>> Parser::parse_place_items_value(Vector<ComponentValue> const& component_values)
{
auto tokens = TokenStream { component_values };
auto maybe_align_items_value = TRY(parse_css_value_for_property(PropertyID::AlignItems, tokens));
if (!maybe_align_items_value)
return nullptr;
if (component_values.size() == 1) {
if (!property_accepts_identifier(PropertyID::JustifyItems, maybe_align_items_value->to_identifier()))
return nullptr;
return PlaceItemsStyleValue::create(*maybe_align_items_value, *maybe_align_items_value);
}
auto maybe_justify_items_value = TRY(parse_css_value_for_property(PropertyID::JustifyItems, tokens));
if (!maybe_justify_items_value)
return nullptr;
return PlaceItemsStyleValue::create(*maybe_align_items_value, *maybe_justify_items_value);
}
ErrorOr<RefPtr<StyleValue>> Parser::parse_text_decoration_value(Vector<ComponentValue> const& component_values)
{
RefPtr<StyleValue> decoration_line;
@ -7456,6 +7476,10 @@ Parser::ParseErrorOr<NonnullRefPtr<StyleValue>> Parser::parse_css_value(Property
if (auto parsed_value = FIXME_TRY(parse_place_content_value(component_values)))
return parsed_value.release_nonnull();
return ParseError::SyntaxError;
case PropertyID::PlaceItems:
if (auto parsed_value = FIXME_TRY(parse_place_items_value(component_values)))
return parsed_value.release_nonnull();
return ParseError::SyntaxError;
case PropertyID::TextDecoration:
if (auto parsed_value = FIXME_TRY(parse_text_decoration_value(component_values)))
return parsed_value.release_nonnull();

1
Userland/Libraries/LibWeb/CSS/Parser/Parser.h
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@ -326,6 +326,7 @@ private:
ErrorOr<RefPtr<StyleValue>> parse_list_style_value(Vector<ComponentValue> const&);
ErrorOr<RefPtr<StyleValue>> parse_overflow_value(Vector<ComponentValue> const&);
ErrorOr<RefPtr<StyleValue>> parse_place_content_value(Vector<ComponentValue> const&);
ErrorOr<RefPtr<StyleValue>> parse_place_items_value(Vector<ComponentValue> const&);
enum class AllowInsetKeyword {
No,
Yes,

8
Userland/Libraries/LibWeb/CSS/Properties.json
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@ -1765,6 +1765,14 @@
"justify-content"
]
},
"place-items": {
"inherited": false,
"initial": "normal",
"longhands": [
"align-items",
"justify-items"
]
},
"pointer-events": {
"affects-layout": false,
"inherited": true,

14
Userland/Libraries/LibWeb/CSS/StyleComputer.cpp
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@ -54,6 +54,7 @@
#include <LibWeb/CSS/StyleValues/OverflowStyleValue.h>
#include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
#include <LibWeb/CSS/StyleValues/PlaceContentStyleValue.h>
#include <LibWeb/CSS/StyleValues/PlaceItemsStyleValue.h>
#include <LibWeb/CSS/StyleValues/PositionStyleValue.h>
#include <LibWeb/CSS/StyleValues/RectStyleValue.h>
#include <LibWeb/CSS/StyleValues/StyleValueList.h>
@ -432,6 +433,19 @@ static void set_property_expanding_shorthands(StyleProperties& style, CSS::Prope
return;
}
if (property_id == CSS::PropertyID::PlaceItems) {
if (value.is_place_items()) {
auto const& place_items = value.as_place_items();
style.set_property(CSS::PropertyID::AlignItems, place_items.align_items());
style.set_property(CSS::PropertyID::JustifyItems, place_items.justify_items());
return;
}
style.set_property(CSS::PropertyID::AlignItems, value);
style.set_property(CSS::PropertyID::JustifyItems, value);
return;
}
if (property_id == CSS::PropertyID::Border) {
set_property_expanding_shorthands(style, CSS::PropertyID::BorderTop, value, document, declaration);
set_property_expanding_shorthands(style, CSS::PropertyID::BorderRight, value, document, declaration);

7
Userland/Libraries/LibWeb/CSS/StyleValue.cpp
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@ -50,6 +50,7 @@
#include <LibWeb/CSS/StyleValues/OverflowStyleValue.h>
#include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
#include <LibWeb/CSS/StyleValues/PlaceContentStyleValue.h>
#include <LibWeb/CSS/StyleValues/PlaceItemsStyleValue.h>
#include <LibWeb/CSS/StyleValues/PositionStyleValue.h>
#include <LibWeb/CSS/StyleValues/RadialGradientStyleValue.h>
#include <LibWeb/CSS/StyleValues/RatioStyleValue.h>
@ -318,6 +319,12 @@ PlaceContentStyleValue const& StyleValue::as_place_content() const
return static_cast<PlaceContentStyleValue const&>(*this);
}
PlaceItemsStyleValue const& StyleValue::as_place_items() const
{
VERIFY(is_place_items());
return static_cast<PlaceItemsStyleValue const&>(*this);
}
PositionStyleValue const& StyleValue::as_position() const
{
VERIFY(is_position());

4
Userland/Libraries/LibWeb/CSS/StyleValue.h
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@ -126,6 +126,7 @@ public:
Overflow,
Percentage,
PlaceContent,
PlaceItems,
Position,
RadialGradient,
Ratio,
@ -184,6 +185,7 @@ public:
bool is_overflow() const { return type() == Type::Overflow; }
bool is_percentage() const { return type() == Type::Percentage; }
bool is_place_content() const { return type() == Type::PlaceContent; }
bool is_place_items() const { return type() == Type::PlaceItems; }
bool is_position() const { return type() == Type::Position; }
bool is_radial_gradient() const { return type() == Type::RadialGradient; }
bool is_ratio() const { return type() == Type::Ratio; }
@ -241,6 +243,7 @@ public:
OverflowStyleValue const& as_overflow() const;
PercentageStyleValue const& as_percentage() const;
PlaceContentStyleValue const& as_place_content() const;
PlaceItemsStyleValue const& as_place_items() const;
PositionStyleValue const& as_position() const;
RadialGradientStyleValue const& as_radial_gradient() const;
RatioStyleValue const& as_ratio() const;
@ -295,6 +298,7 @@ public:
OverflowStyleValue& as_overflow() { return const_cast<OverflowStyleValue&>(const_cast<StyleValue const&>(*this).as_overflow()); }
PercentageStyleValue& as_percentage() { return const_cast<PercentageStyleValue&>(const_cast<StyleValue const&>(*this).as_percentage()); }
PlaceContentStyleValue& as_place_content() { return const_cast<PlaceContentStyleValue&>(const_cast<StyleValue const&>(*this).as_place_content()); }
PlaceItemsStyleValue& as_place_items() { return const_cast<PlaceItemsStyleValue&>(const_cast<StyleValue const&>(*this).as_place_items()); }
PositionStyleValue& as_position() { return const_cast<PositionStyleValue&>(const_cast<StyleValue const&>(*this).as_position()); }
RadialGradientStyleValue& as_radial_gradient() { return const_cast<RadialGradientStyleValue&>(const_cast<StyleValue const&>(*this).as_radial_gradient()); }
RatioStyleValue& as_ratio() { return const_cast<RatioStyleValue&>(const_cast<StyleValue const&>(*this).as_ratio()); }

16
Userland/Libraries/LibWeb/CSS/StyleValues/PlaceItemsStyleValue.cpp Normal file
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@ -0,0 +1,16 @@
/*
* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "PlaceItemsStyleValue.h"
namespace Web::CSS {
ErrorOr<String> PlaceItemsStyleValue::to_string() const
{
return String::formatted("{} {}", TRY(m_properties.align_items->to_string()), TRY(m_properties.justify_items->to_string()));
}
}

42
Userland/Libraries/LibWeb/CSS/StyleValues/PlaceItemsStyleValue.h Normal file
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@ -0,0 +1,42 @@
/*
* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/CSS/StyleValue.h>
namespace Web::CSS {
class PlaceItemsStyleValue final : public StyleValueWithDefaultOperators<PlaceItemsStyleValue> {
public:
static ErrorOr<ValueComparingNonnullRefPtr<PlaceItemsStyleValue>> create(ValueComparingNonnullRefPtr<StyleValue> align_items, ValueComparingNonnullRefPtr<StyleValue> justify_items)
{
return adopt_nonnull_ref_or_enomem(new (nothrow) PlaceItemsStyleValue(move(align_items), move(justify_items)));
}
virtual ~PlaceItemsStyleValue() override = default;
ValueComparingNonnullRefPtr<StyleValue> align_items() const { return m_properties.align_items; }
ValueComparingNonnullRefPtr<StyleValue> justify_items() const { return m_properties.justify_items; }
virtual ErrorOr<String> to_string() const override;
bool properties_equal(PlaceItemsStyleValue const& other) const { return m_properties == other.m_properties; }
private:
PlaceItemsStyleValue(ValueComparingNonnullRefPtr<StyleValue> align_items, ValueComparingNonnullRefPtr<StyleValue> justify_items)
: StyleValueWithDefaultOperators(Type::PlaceItems)
, m_properties { .align_items = move(align_items), .justify_items = move(justify_items) }
{
}
struct Properties {
ValueComparingNonnullRefPtr<StyleValue> align_items;
ValueComparingNonnullRefPtr<StyleValue> justify_items;
bool operator==(Properties const&) const = default;
} m_properties;
};
}

1
Userland/Libraries/LibWeb/Forward.h
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@ -146,6 +146,7 @@ class Percentage;
class PercentageOrCalculated;
class PercentageStyleValue;
class PlaceContentStyleValue;
class PlaceItemsStyleValue;
class PositionStyleValue;
class PropertyOwningCSSStyleDeclaration;
class RadialGradientStyleValue;